Research and implementation for heterogeneous database integration

In order to resolve data integrate and sharing among heterogeneous databases in the network of enterprises,how to use XML shielding the heterogeneous data problems of databases is researched,and came up a frame used for integrating data from heterogeneous databases based on XML and middleware.The frame mainly realized two part of functions:Generation of mapping dictionary for database and inquiration of middleware system.XML is used as a medium for data formate change,and the exchange methods between the data from databases and XML files is provided,and made the user transparently share the data from heterogeneous databases.This model satisfied the information construction of enterprises.